Module: Wxapi::AccessToken

Included in:
Wxapi
Defined in:
lib/wxapi/access_token.rb

Instance Method Summary collapse

Instance Method Details

#get_access_token ⇒ string

获取 access_token 判断access_token_cache，决定是否需要缓存数据

Returns:

  • (string) —

    nil or access_token



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# File 'lib/wxapi/access_token.rb', line 15

def get_access_token()
  appid = @app_id
  secret = @app_secret
  access_token_cache = @access_token_cache

  unless access_token_cache
    response = RestClient.get("#{prefix}/cgi-bin/token?grant_type=client_credential&appid=#{appid}&secret=#{secret}").body
    response_body = (JSON.parse response)

    # 抛出异常
    throw response_body['errmsg']  unless response_body['access_token']

    return response_body['access_token']
  end

  _cache_key = "#{appid}_access_token"
  _cached_access_token = $redis.get _cache_key
  if _cached_access_token == nil or _cached_access_token == ''
    response = RestClient.get("#{prefix}/cgi-bin/token?grant_type=client_credential&appid=#{appid}&secret=#{secret}").body
    response_body = (JSON.parse response)

    # 抛出异常
    throw response_body['errmsg']  unless response_body['access_token']

    _cached_access_token = response_body['access_token']
    $redis.set _cache_key, _cached_access_token, ex: 2.minutes
  end
  _cached_access_token
end